5-1
Chapter
5
USB A Host
Loading Firmware Using a USB Flash Drive
When a USB flash drive is inserted into the USB A port (referred to as “E” below in Figure
5-1), the printer looks at the content of the flash drive, following a set of rules, and deter-
mines if the drive contains a firmware upgrade.
Figure 5-1: Connections Including the USB A Host Port
Connector
Use
A – ON/OFF switch
Controls printer power
B – Power connector
Connects to power supply
C – Ethernet connector (RJ-45)
Ethernet communications port for network connectivity
D – USB-B device port
USB communications port
E – USB-A host port
USB communications port
F – Serial/Parallel port
Serial/parallel data communications port